CN106346199A - Method for manufacturing titanium alloy lower protective plate of automobile bottom plate - Google Patents
Method for manufacturing titanium alloy lower protective plate of automobile bottom plate Download PDFInfo
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- CN106346199A CN106346199A CN201610792084.6A CN201610792084A CN106346199A CN 106346199 A CN106346199 A CN 106346199A CN 201610792084 A CN201610792084 A CN 201610792084A CN 106346199 A CN106346199 A CN 106346199A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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Abstract
The invention discloses a method for manufacturing a titanium alloy lower protective plate of an automobile bottom plate. The method for manufacturing the titanium alloy lower protective plate of the automobile bottom plate comprises the following steps: conducting electrode- pressing process of titanium sponge with a alloy clad to obtain an electrode block; smelting the electrode block in a vacuum arc furnace to obtain titanium ingot; keeping the temperature of the titanium ingot, and conducting forging-cogging process to obtain a plate blank; shaving the plate blank, inspecting and testing, conducting flaw detection, and if the surface has no crack, conducting hot rolling process of the plate blank having no crack by a hot rolling machine to obtain a hot-rolled plate; conducting tension leveling annealing process for the hot-rolled plate, and air-cooling in an annealing furnace; washing the plate with alkali and acid after air-cooling, and inspecting to ensure that the plate has no damage, so as to obtain a titanium alloy plate; conducting water cutting process for the titanium alloy plate to obtain a titanium alloy cut plate strip, machining, and surface polishing if the titanium alloy cut plate strip has no flaw, so as to obtain the titanium alloy lower protective plate of the automobile bottom plate. According to the method for manufacturing the titanium alloy lower protective plate of the automobile bottom plate, the problem that the strength of the aluminum alloy lower protective plate of the automobile bottom plate is inadequate is solved.
Description
Technical field:
The invention belongs to sheet alloy manufacture method technical field is and in particular to backplate under a kind of titanium alloy car floor
Manufacture method.
Background technology
The trade mark (ta18) titanium alloy sheet rapidoprint can be used for making load-carrying construction part, also can be widely used in higher simultaneously
The connectivity structural material of intensity.
In bicycle race, the racing car that used typically will have that specific strength is high, light specific gravity (density 4.5) and nonmagnetic
The advantages of.The titanium alloy plate of execution national standard gb/t3621-2007 processing can substitute primary aluminum alloy material and manufacture automobile bottom
Backplate under disk, backplate intensity deficiency under backplate energy effectively solving aluminum alloy material automobile chassis under the automobile chassis of this material
Problem, in order to guarantee traffic safety.As can be seen here, expand titanium alloy sheet rapidoprint automobile manufacture industry is had very far-reaching
Impact, highly promote.
Content of the invention
It is an object of the invention to provide under a kind of titanium alloy car floor backplate manufacture method, efficiently solve existing
The not enough problem of backplate intensity under aluminum alloy material automobile chassis.
The technical solution adopted in the present invention is, the manufacture method of backplate under a kind of titanium alloy car floor, specifically according to
Following steps are implemented:
Step 1, first adopt titanium sponge gold conjugate bag process, then carry out press Electrode treatment, obtain electrode block；
Step 2, the electrode block obtaining through step 1 is placed in vacuum arc furnace ignition carry out three meltings process, obtain titanium ingot；
Step 3, the titanium ingot obtaining through step 2 is first carried out isothermal holding, then carry out hammer cogging process, obtain plate
Base；
Step 4, the slab obtaining through step 3 is carried out successively planing surface, inspection, flaw detection are processed, to judge that steel slab surface is
No have a crackle:
If steel slab surface does not have crackle, enter step 5；
If face crack is shallower, after carrying out reconditioning, proceed to step 5 in entrance；
If face crack is deeper, melting again；
Step 5, using hot-rolling mill to through step 4 detection after surface do not have the slab of crackle to carry out three hot rolling treatments, obtain
To hot rolled plate；
Step 6, by the hot rolled plate obtaining through step 5 prior to carry out in annealing furnace press leveling annealing, then in annealing
Stove hollow cold treatment；
Step 7, will process through step 6 after the material that obtains first carry out quick-fried alkali, pickling successively, in order to remove removing oxide layer, then
Through nondestructive flaw detection examination, surface inspection, after determining not damaged, obtain titanium alloy sheet；
Step 8, the titanium alloy sheet obtaining through step 7 is carried out Water Cutting, form titanium alloy cutting lath；
Step 9, by the titanium alloy obtaining through step 8 cutting lath carry out machining, reexamine and measure size, if not having
There is flaw, then carry out surface polishing, obtain backplate under titanium alloy car floor.
The feature of the present invention also resides in:
Step 1 is specifically implemented according to following steps:
Step a, according to forcing press tankage, the titanium sponge weighing accounting more than 80% claims as primary raw material, more respectively
Take ferrum, the oxygen intermediate alloy of below aluminum below 10% for the accounting, vanadium and accounting≤0.5%, wherein, aluminum, vanadium, ferrum, oxygen are common
Constitute alloy bag；
Step b, after step a, titanium sponge is positioned in pressure trough with the layering of alloy bag, under 4500t forcing press
It is pressed into electrode block.
In step 2, crucible during melting, is adopted to contain electrode block, and a diameter of ф 390mm～560mm of described crucible.
In step 2:
The technological parameter of first time melting is: striking current is 2200a～3500a, and voltage is 27v～30v, and vacuum is
6.8e-0～1.4e-0；It is 6000a～9000a that melting adopts electric current, and voltage is 33v～35v, vacuum 1.5e 1～
5.0e 0, stabilising arc 3～8, cool time is 2.5h～5.5h, and water temperature is below 60 DEG C；
The technological parameter of second melting is: using striking current 2.2ka～3.5ka, voltage, vacuum melt with for the first time
Refining is identical, and voltage is 27v～30v, and vacuum is 6.8e-0～1.4e-0；Melting adopts electric current 8ka～22.5ka, voltage 32v
～35v, vacuum 8.5e 0～1.2e-1, stabilising arc 3～10, cool time 4h～8h, water temperature is below 60 DEG C；
The technological parameter of third time melting is identical with the technological parameter of second melting: using striking current 2.2ka
～3.5ka, voltage, vacuum are identical with first time melting, and voltage is 27v～30v, and vacuum is 6.8e-0～1.4e-0；Molten
Refining adopt electric current 8ka～22.5ka, voltage 32v～35v, vacuum 8.5e 0～1.2e-1, stabilising arc 3～10, cool time 4h
～8h, water temperature is below 60 DEG C.
In step 3, the temperature of isothermal holding is 1050 DEG C～1150 DEG C, and temperature retention time is 250min～290min.
In step 3, hammer cogging uses the forging of 3500t hydraulic press in processing.
The width of the hot-rolling mill adopting in steps of 5 is 2400mm；
The temperature of first time hot rolling is 1100 DEG C～1200 DEG C, is incubated 160min～200min after hot rolling；
The temperature of second hot rolling is 950 DEG C～1050 DEG C, is incubated 130min～170min after hot rolling；
The temperature of third time hot rolling is 900 DEG C～980 DEG C, is incubated 100min～140min after hot rolling.
In step 6: in pressure leveling annealing process, temperature control is 700 DEG C～800 DEG C, and temperature retention time is
110min～130min；
In described step 6, the time of annealing furnace hollow cold treatment is one week.
The beneficial effects of the present invention is:
(1) the titanium alloy automobile chassis being produced using the manufacture method of backplate under a kind of present invention titanium alloy car floor
Lower backplate solves the problems, such as that now widely used aluminium alloy backplate intensity is not enough.
(2) the titanium alloy automobile chassis being produced using the manufacture method of backplate under a kind of present invention titanium alloy car floor
Lower shield belongs to low-intensity structural material, and its advantage is lightweight, and tensile strength is about 300mpa.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.
The manufacture method of backplate under a kind of present invention titanium alloy car floor, specifically implements according to following steps:
Step 1, first adopt titanium sponge gold conjugate bag process, then carry out press Electrode treatment, obtain electrode block；Specifically according to
Lower step is implemented:
Step a, according to forcing press tankage, by the titanium sponge of accounting more than 80% as primary raw material, weigh respectively and account for
Ferrum below aluminum than less than 10%, vanadium and accounting≤0.5%, oxygen intermediate alloy, all raw materials are bundled into alloy bag；
Step b, the alloy bag of titanium sponge and formation in step a is carried out proportioning, and titanium sponge is put with the layering of alloy bag
It is placed in pressure trough, under 4500t forcing press, be pressed into electrode block.
Step 2, the electrode block obtaining through step 1 is placed in vacuum arc furnace ignition carry out three meltings process, obtain titanium ingot,
Specific as follows:
Crucible is adopted to contain electrode block during melting, and a diameter of ф 390mm～560mm of this crucible；
The technological parameter of first time melting is: striking current is 2200a～3500a, and voltage is 27v～30v, and vacuum is
6.8e-0～1.4e-0；It is 6000a～9000a that melting adopts electric current, and voltage is 33v～35v, vacuum 1.5e 1～
5.0e 0, stabilising arc 3～8, cool time is 2.5h～5.5h, and water temperature is below 60 DEG C；
The technological parameter of second melting is: using striking current 2.2ka～3.5ka, voltage, vacuum melt with for the first time
Refining is identical, and voltage is 27v～30v, and vacuum is 6.8e-0～1.4e-0；Melting adopts electric current 8ka～22.5ka, voltage 32v
～35v, vacuum 8.5e 0～1.2e-1, stabilising arc 3～10, cool time 4h～8h, water temperature is below 60 DEG C；
The technological parameter of third time melting is identical with the technological parameter of second melting: using striking current 2.2ka
～3.5ka, voltage, vacuum are identical with first time melting, and voltage is 27v～30v, and vacuum is 6.8e-0～1.4e-0；Molten
Refining adopt electric current 8ka～22.5ka, voltage 32v～35v, vacuum 8.5e 0～1.2e-1, stabilising arc 3～10, cool time 4h
～8h, water temperature is below 60 DEG C.
Step 3, the titanium ingot obtaining through step 2 is first carried out isothermal holding, then carry out hammer cogging process, obtain plate
Base；
Wherein, the temperature of isothermal holding is 1050 DEG C～1150 DEG C, and temperature retention time is 250min～290min；
Hammer cogging uses the forging of 3500t hydraulic press when processing.
Step 4, the slab obtaining through step 3 is carried out successively planing surface, inspection, flaw detection are processed, to judge that steel slab surface is
No have a crackle:
If steel slab surface does not have crackle, enter step 5；
If face crack is shallower, after carrying out reconditioning, proceed to step 5 in entrance；
If face crack is deeper, again melting or process other less workpiece.
Step 5, using hot-rolling mill to through step 4 detection after surface do not have the slab of crackle to carry out three hot rolling treatments, obtain
To hot rolled plate；
Wherein, the width of hot-rolling mill is 2400mm；
The temperature of first time hot rolling is 1100 DEG C～1200 DEG C, is incubated 160min～200min after hot rolling；
The temperature of second hot rolling is 950 DEG C～1050 DEG C, is incubated 130min～170min after hot rolling；
The temperature of third time hot rolling is 900 DEG C～980 DEG C, is incubated 100min～140min after hot rolling.
Step 6, by the hot rolled plate obtaining through step 5 prior to carry out in annealing furnace press leveling annealing, then in annealing
Stove hollow cold treatment；
Wherein, pressure leveling annealing process in: temperature control is: 700 DEG C～800 DEG C, temperature retention time be 110min～
130min；
The time that air cooling is processed in the lehr is one week.
Step 7, will process through step 6 after the material that obtains first carry out quick-fried alkali, pickling successively, in order to remove removing oxide layer, then
Through nondestructive flaw detection examination, surface inspection, after determining not damaged, obtain titanium alloy sheet.
Step 8, the titanium alloy sheet obtaining through step 7 is carried out Water Cutting, form titanium alloy cutting lath.
Step 9, by the titanium alloy obtaining through step 8 cutting lath carry out machining, reexamine and measure size, if not having
There is flaw, then carry out surface polishing, obtain backplate under titanium alloy car floor.
Embodiment 1
According to forcing press tankage, by the titanium sponge of accounting more than 80% as primary raw material, weigh accounting 10% respectively
Ferrum below following aluminum, vanadium and accounting≤0.5%, oxygen intermediate alloy, all raw materials are bundled into alloy bag；By titanium sponge with
The alloy bag being formed in step a carries out proportioning, and titanium sponge is positioned in pressure trough with the layering of alloy bag, in 4500t pressure
It is pressed into electrode block under power machine；
The electrode block obtaining is placed in vacuum arc furnace ignition and carries out three meltings process, obtain titanium ingot, during melting, adopt earthenware
Crucible contains electrode block, and a diameter of ф 390mm of this crucible；The technological parameter of first time melting is: striking current is 2200a,
Voltage is 27v, and vacuum is 6.8e-0；It is 6000a that melting adopts electric current, and voltage is 33v, vacuum 1.5e 1, and stabilising arc 3 is cold
But the time is 2.5h, and water temperature is below 60 DEG C；The technological parameter of second melting is: using striking current 2.2ka, voltage, true
Reciprocal of duty cycle is identical with first time melting, and voltage is 27v, and vacuum is 6.8e-0；Melting adopts electric current 8ka, voltage 32v, vacuum
8.5e 0, stabilising arc 3, cool time 4h, water temperature is below 60 DEG C；The technological parameter of third time melting and the work of second melting
Skill parameter is identical: using striking current 2.2ka, voltage, vacuum are identical with first time melting, and voltage is 27v, vacuum
For 6.8e-0；Melting adopt electric current 8ka, voltage 32v, vacuum 8.5e 0, stabilising arc 3, cool time 4h, water temperature 60 DEG C with
Under；
The titanium obtaining ingot is first carried out isothermal holding, then carries out hammer cogging process, obtain slab, wherein, at insulation
The temperature of reason is 1050 DEG C, and temperature retention time is 250min；Hammer cogging uses the forging of 3500t hydraulic press when processing；
The slab obtaining is carried out successively planing surface, inspection, flaw detection are processed, to judge that steel slab surface whether there is crackle: if
There is not crackle in steel slab surface, then enter subsequent step；If face crack is shallower, after carrying out reconditioning, proceed to postorder in entrance
Step；If face crack is deeper, again melting or process other less workpiece；
Do not have the slab of crackle to carry out three hot rolling treatments on surface after detection using hot-rolling mill, obtain hot rolled plate；Wherein,
The width of hot-rolling mill is 2400mm；The temperature of first time hot rolling is 1100 DEG C, is incubated 160min after hot rolling；The temperature of second hot rolling
Spend for 950 DEG C, after hot rolling, be incubated 130min；The temperature of third time hot rolling is 900 DEG C, is incubated 100min after hot rolling；
By the hot rolled plate obtaining prior to carrying out in annealing furnace pressing leveling annealing, then in annealing furnace hollow cold treatment；
Wherein, in pressure leveling annealing process: temperature control is: 700 DEG C, temperature retention time is 110min；In the lehr at air cooling
The time of reason is one week.
The material obtaining first is carried out quick-fried alkali, pickling successively, in order to remove removing oxide layer, then through nondestructive flaw detection examination, surface
Check, after determining not damaged, obtain titanium alloy sheet；
The titanium alloy sheet obtaining is carried out Water Cutting, forms titanium alloy cutting lath；
The titanium alloy obtaining cutting lath is carried out machining, reexamining and measure size, if there is no flaw, carrying out
Surface polishing, obtains backplate under titanium alloy car floor.
Embodiment 2
According to forcing press tankage, by the titanium sponge of accounting more than 80% as primary raw material, weigh accounting 10% respectively
Ferrum below following aluminum, vanadium and accounting≤0.5%, oxygen intermediate alloy, all raw materials are bundled into alloy bag；By titanium sponge with
The alloy bag being formed in step a carries out proportioning, and titanium sponge is positioned in pressure trough with the layering of alloy bag, in 4500t pressure
It is pressed into electrode block under power machine；
The electrode block obtaining is placed in vacuum arc furnace ignition and carries out three meltings process, obtain titanium ingot, during melting, adopt earthenware
Crucible contains electrode block, and a diameter of ф 480mm of this crucible；The technological parameter of first time melting is: striking current is 2800a,
Voltage is 28v, and vacuum is 6.8e-0；It is 7500a that melting adopts electric current, and voltage is 34v, vacuum 1.5e 1, and stabilising arc 3 is cold
But the time is 3.5h, and water temperature is below 60 DEG C；The technological parameter of second melting is: using striking current 2.8ka, voltage, true
Reciprocal of duty cycle is identical with first time melting, and voltage is 29v, and vacuum is 6.8e-0；Melting adopts electric current 15ka, voltage 34v, vacuum
8.5e 0, stabilising arc 6, cool time 6h, water temperature is below 60 DEG C；The technological parameter of third time melting and the work of second melting
Skill parameter is identical: using striking current 3ka, voltage, vacuum are identical with first time melting, and voltage is 28v, and vacuum is
6.8e-0；Melting adopt electric current 15ka, voltage 33v, vacuum 8.5e 0, stabilising arc 7, cool time 6h, water temperature 60 DEG C with
Under；
The titanium obtaining ingot is first carried out isothermal holding, then carries out hammer cogging process, obtain slab, wherein, at insulation
The temperature of reason is 1100 DEG C, and temperature retention time is 270min；Hammer cogging uses the forging of 3500t hydraulic press when processing；
The slab obtaining is carried out successively planing surface, inspection, flaw detection are processed, to judge that steel slab surface whether there is crackle: if
There is not crackle in steel slab surface, then enter subsequent step；If face crack is shallower, after carrying out reconditioning, proceed to postorder in entrance
Step；If face crack is deeper, again melting or process other less workpiece；
Do not have the slab of crackle to carry out three hot rolling treatments on surface after detection using hot-rolling mill, obtain hot rolled plate；Wherein,
The width of hot-rolling mill is 2400mm；The temperature of first time hot rolling is 1150 DEG C, is incubated 180min after hot rolling；The temperature of second hot rolling
Spend for 1000 DEG C, after hot rolling, be incubated 150min；The temperature of third time hot rolling is 940 DEG C, is incubated 120min after hot rolling；
By the hot rolled plate obtaining prior to carrying out in annealing furnace pressing leveling annealing, then in annealing furnace hollow cold treatment；
Wherein, in pressure leveling annealing process: temperature control is: 750 DEG C, temperature retention time is 120min；In the lehr at air cooling
The time of reason is one week.
The material obtaining first is carried out quick-fried alkali, pickling successively, in order to remove removing oxide layer, then through nondestructive flaw detection examination, surface
Check, after determining not damaged, obtain titanium alloy sheet；
The titanium alloy sheet obtaining is carried out Water Cutting, forms titanium alloy cutting lath；
The titanium alloy obtaining cutting lath is carried out machining, reexamining and measure size, if there is no flaw, carrying out
Surface polishing, obtains backplate under titanium alloy car floor.
Embodiment 3
According to forcing press tankage, by the titanium sponge of accounting more than 80% as primary raw material, weigh accounting 10% respectively
Ferrum below following aluminum, vanadium and accounting≤0.5%, oxygen intermediate alloy, all raw materials are bundled into alloy bag；By titanium sponge with
The alloy bag being formed in step a carries out proportioning, and titanium sponge is positioned in pressure trough with the layering of alloy bag, in 4500t pressure
It is pressed into electrode block under power machine.
Electrode block through obtaining is placed in vacuum arc furnace ignition and carries out three meltings process, obtain titanium ingot, adopt during melting
Crucible contains electrode block, and a diameter of 560mm of this crucible；The technological parameter of first time melting is: striking current is 3500a,
Voltage is 30v, and vacuum is 1.4e-0；It is 9000a that melting adopts electric current, and voltage is 35v, vacuum 5.0e 0, and stabilising arc 8 is cold
But the time is 5.5h, and water temperature is below 60 DEG C；The technological parameter of second melting is: using striking current 3.5ka, voltage, true
Reciprocal of duty cycle is identical with first time melting, and voltage is 30v, and vacuum is 1.4e-0；Melting adopts electric current 22.5ka, and voltage is 35v, very
Reciprocal of duty cycle 81.2e-1, stabilising arc 3～10, cool time 8h, water temperature is below 60 DEG C；The technological parameter of third time melting is with for the second time
The technological parameter of melting is identical: using striking current 3.5ka, voltage, vacuum are identical with first time melting, and voltage is
30v, vacuum is 1.4e-0；Melting adopt electric current 22.5ka, voltage 35v, vacuum 1.2e-1, stabilising arc 10, cool time 8h,
Water temperature is below 60 DEG C；
The titanium obtaining ingot is first carried out isothermal holding, then carries out hammer cogging process, obtain slab, wherein, at insulation
The temperature of reason is 1150 DEG C, and temperature retention time is 290min；Hammer cogging uses the forging of 3500t hydraulic press when processing.
The slab obtaining is carried out successively planing surface, inspection, flaw detection are processed, to judge that steel slab surface whether there is crackle: if
There is not crackle in steel slab surface, then enter subsequent step；If face crack is shallower, after carrying out reconditioning, proceed to postorder in entrance
Step；If face crack is deeper, again melting or process other less workpiece.
Do not have the slab of crackle to carry out three hot rolling treatments on surface after detection using hot-rolling mill, obtain hot rolled plate；Wherein,
The width of hot-rolling mill is 2400mm；The temperature of first time hot rolling is 1200 DEG C, is incubated 200min after hot rolling；The temperature of second hot rolling
Spend for 1050 DEG C, after hot rolling, be incubated 170min；The temperature of third time hot rolling is 980 DEG C, is incubated 140min after hot rolling；
By the hot rolled plate obtaining prior to carrying out in annealing furnace pressing leveling annealing, then in annealing furnace hollow cold treatment；
Wherein, in pressure leveling annealing process: temperature control is: 800 DEG C, temperature retention time is 130min；In the lehr at air cooling
The time of reason is one week；
The material obtaining after processing first carries out quick-fried alkali, pickling successively, in order to remove removing oxide layer, then through nondestructive inspection inspection
Look into, surface inspection, after determining not damaged, obtain titanium alloy sheet；
The titanium alloy sheet obtaining is carried out Water Cutting, forms titanium alloy cutting lath；
The titanium alloy obtaining cutting lath is carried out machining, reexamining and measure size, if there is no flaw, carrying out
Surface polishing, obtains backplate under titanium alloy car floor.
Using under the titanium alloy car floor that the manufacture method of backplate under a kind of present invention titanium alloy car floor produces
Backplate, its chemical composition is specifically as shown in table 1；
The chemical component table of backplate under table 1 titanium alloy car floor
Note: type alpha+beta titanium, aluminum, vanadium alloy.
Using under the titanium alloy car floor that the manufacture method of backplate under a kind of present invention titanium alloy car floor produces
Backplate, its physical property is specifically as shown in table 2；
The physical property table of backplate under table 2 titanium alloy car floor
Using under the titanium alloy automobile chassis that the manufacture method of backplate under a kind of present invention titanium alloy car floor produces
Backplate solves the problems, such as that now widely used aluminium alloy backplate intensity is not enough；In addition, utilizing a kind of present invention titanium alloy vapour
Under the titanium alloy automobile chassis that under car bottom plate, the manufacture method of backplate produces, shield belongs to low-intensity structural material, and its advantage is weight
Amount is light, and tensile strength is about 300mpa.
Claims (9)
1. under a kind of titanium alloy car floor backplate manufacture method it is characterised in that specifically according to following steps implement:
Step 1, first adopt titanium sponge gold conjugate bag process, then carry out press Electrode treatment, obtain electrode block；
Step 2, the electrode block obtaining through step 1 is placed in vacuum arc furnace ignition carry out three meltings process, obtain titanium ingot；
Step 3, the titanium ingot obtaining through step 2 is first carried out isothermal holding, then carry out hammer cogging process, obtain slab；
Step 4, the slab obtaining through step 3 is carried out successively planing surface, inspection, flaw detection process, to judge whether steel slab surface deposits
In crackle:
If steel slab surface does not have crackle, enter step 5；
If face crack is shallower, after carrying out reconditioning, proceed to step 5 in entrance；
If face crack is deeper, melting again；
Step 5, using hot-rolling mill to through step 4 detection after surface do not have the slab of crackle to carry out three hot rolling treatments, obtain heat
Roll plate；
Step 6, by the hot rolled plate obtaining through step 5 prior to carry out in annealing furnace press leveling annealing, then in annealing furnace
Air cooling is processed；
Step 7, will process through step 6 after the material that obtains first carry out quick-fried alkali, pickling successively, in order to remove removing oxide layer, then through no
Damage defect detecting test, surface inspection, after determining not damaged, obtain titanium alloy sheet；
Step 8, the titanium alloy sheet obtaining through step 7 is carried out Water Cutting, form titanium alloy cutting lath；
Step 9, by the titanium alloy obtaining through step 8 cutting lath carry out machining, reexamine and measure size, if there is no the flaw
Defect, then carry out surface polishing, obtains backplate under titanium alloy car floor.
2. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described step
Rapid 1 specifically implements according to following steps:
Step a, according to forcing press tankage, the titanium sponge weighing accounting more than 80% is as primary raw material, then weighs respectively and account for
Ferrum below aluminum than less than 10%, vanadium and accounting≤0.5%, oxygen intermediate alloy, wherein, aluminum, vanadium, ferrum, oxygen collectively form
Alloy bag；
Step b, after step a, titanium sponge is positioned in pressure trough with the layering of alloy bag, suppresses under 4500t forcing press
Become electrode block.
3. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described step
In rapid 2, crucible during melting, is adopted to contain electrode block, and a diameter of ф 390mm～560mm of described crucible.
4. under a kind of titanium alloy car floor according to claim 1 or 3 backplate manufacture method it is characterised in that
In described step 2:
The technological parameter of first time melting is: striking current is 2200a～3500a, and voltage is 27v～30v, and vacuum is
6.8e-0～1.4e-0；It is 6000a～9000a that melting adopts electric current, and voltage is 33v～35v, vacuum 1.5e 1～
5.0e 0, stabilising arc 3～8, cool time is 2.5h～5.5h, and water temperature is below 60 DEG C；
The technological parameter of second melting is: using striking current 2.2ka～3.5ka, voltage, vacuum and first time melting phase
With voltage is 27v～30v, and vacuum is 6.8e-0～1.4e-0；Melting adopt electric current 8ka～22.5ka, voltage 32v～
35v, vacuum 8.5e 0～1.2e-1, stabilising arc 3～10, cool time 4h～8h, water temperature is below 60 DEG C；
The technological parameter of third time melting is identical with the technological parameter of second melting: using striking current 2.2ka～
3.5ka, voltage, vacuum are identical with first time melting, and voltage is 27v～30v, and vacuum is 6.8e-0～1.4e-0；Melting
Using electric current 8ka～22.5ka, voltage 32v～35v, vacuum 8.5e 0～1.2e-1, stabilising arc 3～10, cool time 4h～
8h, water temperature is below 60 DEG C.
5. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described
In step 3, the temperature of isothermal holding is 1050 DEG C～1150 DEG C, and temperature retention time is 250min～290min.
6. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described
In step 3, hammer cogging uses the forging of 3500t hydraulic press in processing.
7. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described
The width of the hot-rolling mill adopting in step 5 is 2400mm；
The temperature of described first time hot rolling is 1100 DEG C～1200 DEG C, is incubated 160min～200min after hot rolling；
The temperature of described second hot rolling is 950 DEG C～1050 DEG C, is incubated 130min～170min after hot rolling；
The temperature of described third time hot rolling is 900 DEG C～980 DEG C, is incubated 100min～140min after hot rolling.
8. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described
In step 6:
In pressure leveling annealing process, temperature control is 700 DEG C～800 DEG C, and temperature retention time is 110min～130min.
9. under a kind of titanium alloy car floor according to claim 1 the manufacture method of backplate it is characterised in that described
In step 6, the time of annealing furnace hollow cold treatment is one week.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120366A (en) * | 1994-10-25 | 1996-05-14 | Sumitomo Metal Ind Ltd | Method for continuously casting titanium cast slab |
| CN101906602A (en) * | 2010-09-10 | 2010-12-08 | 攀钢集团钢铁钒钛股份有限公司 | Method for processing metastable beta-type titanium alloy plate |
| CN102225504A (en) * | 2011-04-06 | 2011-10-26 | 宝鸡鑫泽钛镍有限公司 | Process for fabricating high precision titanium and titanium alloy plates |
| CN102978438A (en) * | 2012-12-14 | 2013-03-20 | 西北有色金属研究院 | Medium/high-strength titanium alloy capable of being cold-rolled and enhanced by heat treatment |
| CN103008978A (en) * | 2011-09-21 | 2013-04-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing titanium plate billet |
| CN103215553A (en) * | 2013-04-27 | 2013-07-24 | 西部钛业有限责任公司 | Method for preparing high-purity titanium plate for use as target |
| CN104651767A (en) * | 2015-01-27 | 2015-05-27 | 洛阳双瑞精铸钛业有限公司 | Processing method of medical TC4ELI titanium alloy moderately-thick plate |
-
2016
- 2016-08-31 CN CN201610792084.6A patent/CN106346199B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120366A (en) * | 1994-10-25 | 1996-05-14 | Sumitomo Metal Ind Ltd | Method for continuously casting titanium cast slab |
| CN101906602A (en) * | 2010-09-10 | 2010-12-08 | 攀钢集团钢铁钒钛股份有限公司 | Method for processing metastable beta-type titanium alloy plate |
| CN102225504A (en) * | 2011-04-06 | 2011-10-26 | 宝鸡鑫泽钛镍有限公司 | Process for fabricating high precision titanium and titanium alloy plates |
| CN103008978A (en) * | 2011-09-21 | 2013-04-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing titanium plate billet |
| CN102978438A (en) * | 2012-12-14 | 2013-03-20 | 西北有色金属研究院 | Medium/high-strength titanium alloy capable of being cold-rolled and enhanced by heat treatment |
| CN103215553A (en) * | 2013-04-27 | 2013-07-24 | 西部钛业有限责任公司 | Method for preparing high-purity titanium plate for use as target |
| CN104651767A (en) * | 2015-01-27 | 2015-05-27 | 洛阳双瑞精铸钛业有限公司 | Processing method of medical TC4ELI titanium alloy moderately-thick plate |
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